Telescoping handle



Aug. 5, 1952 H. D. MORRIS ETAL TELEscoPING HANDLE Filed Aug. 16, 1949 BvCQZZ @0,5022

Patented Aug. 5, 1952 Harriman-Merrie ana-oannmliasom..

' Grayslakeflu;

Application/Agnus, 1949; seriaiind. `111x622.

Y'This 4invention relateslgenerally, totelesco.pingVJ units andmoreparticularly to .the-.particular,con.-

struction .of telescoping tubular .Y sections... Tele-.- scoping rods.or handleshave awariety ofguses... in which thefindividual sectionsmust ...be :locked-3., inftheir relative. extended..positions.-.lt,is..the.

primary object of thisinventionto.providetelee scoping tubular sections.twith .an improvedsand novel means for locking;adjacentsectiongmtherextended position.-

Another. object of this-invention is ,to..-provide..- adjacent tubular.sections of; a ,t telescoping rod c with means` forY concentrically:aligning.. eachsmaller. sectonwi-thin the vnextlarger section.

in allfrelativepositions of.the.,sections. .l

Anotherobject is the.p rovisioneof-fmeansgfonl locking adjacent tubularsectionsfagainstwrelartiverotational-movement when.inaextendedpost. ytion; said vmeans being independent of means. forf'preventingytelescoping of the;members2in such:l

position.

A=further object Yof "this einvention isrthe pro-,A vision" of la'telescoping tubular rod in whiclipthes:Y sectionsgthereof when 1 onceassembled are pre-VY ventedv from .being separated-v accidentally; into,

separate sections.

A still further Yobject is the-,provisionnf a: plu;`

rality'of tubular telescoping'sections1witlr means: f or :preventingbending.; of rthexsections. 1. at their? Fig: 5is atransverse'sectionalvi'ew talrenialongl the'line-'S-i'of Ffgii':

Fig; 6 "is'a"-sectional view taken alonglineiif-f ofcFig. 3. v

Fig: v7VA is" a brcirensectionalA vi'ew'taken along. lirici-1 of Figr4:

The telescopinghan'dle orlrod of this* invensections 'which' are of.diierent 'diameters so that the sectionsk may. all. be islidably, ttedtogether.l

endwisein' the manner of 'a telescope.A Asystem.

of `lsleeves is .provided yb'etweeneach. pairofad-l.

jacentsections to provide means .for holding. thesectionsconcentricallyalig'nedfand `lto strengthen@ the .extended rod. againstlateral displacement l from.: saidj alignment;- All longitudinalAstresses-v placed" upon the rod l are.. transferred between'.`

g sectionsthrough the sleevesor through cooperatingpin andbayonet slotconnectionsleavingf.only, torsional stresses to .be transferred..between sec-- tions throughseparate means..wl1ichy thus-serve.

primarily .alockinginctionas .will presently become more apparent;

In. the embodiment .illustratedl inthe .accom' panying.- drawings.` thetelesoopingf.. handle. is

shown as composed of three sections :including a= largest section I anintermediate section'v 2; and

iuntures in eXteIlded PDSitOnfaWhen:Subjectedzoif'asmallest.section3*.adapted to viitvslidaloly` toto forces normal to the axis, ofthegsectiona..r

While :the invention'.is:susceptibleeofembodiment in manydiierentformspit is shown in the: drawings f and. will hereinafter` beidescribedixirr'.

detail in one specic embodiment;` with itheurr-z derstanding :that `the:present disclosure-1s.:atot-bey considered las an'exempliiication oftheeprincilolesf of the invention and is not intended todimitlth'ezyinvention to; the embodiments-illustrated: The

gether .endwiseA in the manner fof a telescope;:. thoughobviously .tweeor more' intermediate sec-"- tionecould .be employed.i The termslargestl n smallest largerandv smaller as employed.. 35' herein andintheclaimsfrefer to the relativecross".`l sectional .areas ofethe-sectionsf'andI it isto bef. appreciated Athat afparticular' section'can be'both a..larger. and-fa.=smalier."'sectionz A olosingf means-4,placed over.thef-freeend-ofY section'l 500116101? the inventdn'w'l'l'bee'pnted Out Ir ther" 40` afterv the..telescoping sections' have #beenassemappendedclaims.

In the drawings,

tached thereto.

Fig. 3 'is an enlarged xloroken side view showing indotted lines V.theinternal constructionof fthe telescoping -rod orhandle.l

Figf4is a viewof the'telescoping 'handlewith' the sections in telescopedrelatio'rnpartiallyjinV` bled; and' a: tool' or'V device'- 'attachingmeans t' 5 f' the ehandle. Sectiozr telescopes withinisection.'

` 2 -and both sections 3 fandtZ telescope'vwithinithef `sectioryl `inthe manner shown-in Fi'gfZsUthat; the whole mdorhandlemay--befcollapsedinto a unit otthefsize'dened bythe length and outerdiameter ofthe largest tubular sectionr I As best seen-in Figsf, 4 and6, thelargest sec;

"i" tion.|. has at `its inner or receiving f end' (the right end .asviewed in Fig. 3) .any internalv sleeve 6 with an internal diameter justslightly .larger than the external diameterotthe section..2..so .thatvthe sectionis sldabldtherethrough.- The. 5 ylsectozrztn turn has a1;the end within the section I (i. e. the retained or first received end)a long, external sleeve 'I with an external diameter just slightlysmaller than the internal diameter of the lar-gest section I so as to beslidable therein but not through the internal sleeve 6. While the sleeve6 is here shown as being relatively narrow and the sleeve 'I asrelatively long, the proportions are not material so long as thecombined length is substantial. `In the preferred embodiment, theopposed ends or faces of the sleeves abut when the sections are extendedthus bearing any longitudinal pull on the handle.

- diametrically opposed slots This, however, is not an absoluteessential, as will faces for the joined sections and maintain the` Thisfunction is' sections in axial alignment,

is held in a fixed plane with the portion I4 lying in a plane coincidingwith the axis of the section 2. A compression spring Il interposedbetween the bottom of the casing I2 and the detent functions to urge thesame radially outwardly. It is not necessary to provide means forretaining the detent against loss out of the casing for once thesections are assembled, as will presently be described, the sectionsthemselves serve to retain the detent.

Completing the locking means are a pair of I8 formed in the receivingend of the section I. 'I'hese slots I8 are so positioned relative to thepins Ill and the bayonetslots in the sleeve 1 and the detent I I :thatone or the other of the slots I8 will register particularly importantwhen the sections are-extended and it is under that condition that thelarge over-all reach of sleeves 6 and 'I proves its value in maintainingthe sections in straight, axial alignment even underthebendingforces towhich the handle is subjected. Y

In the preferred embodiment, the sleevelis provided with a pair ofdiametrically opposed bayonet slots 8 which open throughv the inner orabutting end 9 of the sleeve 1. A pairof pins I project radiallyinwardly from the section I at diametrically opposed points'adistanceequal to the 4clearance between the'sections l and 2"proper.` The pinsI0 are so spaced from the sleeve 6 as to be receivable in the transverseportions of the bayonet slots before or preferably simultaneously withabutment'of the sleeves 6 and 1 as an incident to extension of thesection 2. When vthe location of the pins I Il is such that they passinto the transverse portions of the slots 8 beforeabutment of thesleeves, the pins take both pull and `push strains and thus are subjectto considerable wear. When the pins I0 pass into the transverse portionsof the slots 8' simultaneously with abutment of the sleeves, the sleevestakey the pull strain, as already described, leaving the pins to takeonly thepush strain. It will be apparent to any mechanic that the pinsI0 and slots 8 could be'reversed with the slots formed in sleeve 6 andthe pinsl I0 carried lby section 2.

Means is provided to hold the sections I and 2 against relativerotational movement when in extended position and by so holding thesections against relative rotation locking the sections against relativeaxial movement. Inas'- much as all axial stresses are carried bythesleeves 6 and I or the pins I0, the locking means can be of simpleconstruction and needv be sturdy enough only to hold the sectionsagainst relative rotation. Hereinv the locking means takes the form of adetent II carried within a thimble-like casing I2 inserted in thesection 2 diametrically thereof, spaced inwardly of the sleeve 1. Thedetent has a cylindrical, bulletlike portion I3 which terminates at itsouter end in a ilatted or fin-like portion I4 extending both radiallybeyond the end of the portion I3 and laterally thereof. One corner ofthe portion I4 is rounded for purposes that will'presently becomeapparent. Disposed in the same plane as the 1in-like portion I 4 butprojecting in an opposite, lateral direction is a lug I5 forming aradially outwardly facing shoulder. The casing I2 is formed withdiametrically oppositely disposed slots IS in which the fin-like portionI 4l and the lug ISoperate and by Which the detent vwith the detent whenthe pins I0 are at the endslofV the transverse portions of the bayonetslots-,8.- -IThe longitudinal positioning of the various cooperatingelements is such that when the sections are in locked, extended positionthe lug' I5 `remainsf vunder and'inwardlyof the slotted areaof sectionIjso'as to-retain the'detentagainst loss when the fin-like portionf|4projects into and throughithe slot I8. When thensections are telescoped;theentire detent is, of course, Within the section I and'thus is heldagainst loss out of 'itscasing It is believed apparent from the abovethat to lock the section 2 in extendedposition it is only necesary thatit vbe pulled out ofthe section I as far as'possible, rotated toV bringthe pins III intoregistry with the bayonet slots 8 which will thenpermit of a-short additional axial movement of the section 2, and then afurther relative rotational movement to position the pins I0 in theAinner en'ds of the transverse portions of the bayonet slots. (Therounded corner on the 1in portion- I4 prevents the detent from catchingon the vsleeve 6.) As the pins reach that point, one of the slots I8 inthe section I and the detent come into registrywith the'detentautomatically'projected radially outwardly with its portion I4 engagingone-ofthe slots I8 to lock thev sections vagainst relativevr rotationalmovement and simultaneously against relative axial movement. Thetelescoping of'the sections is just as simple as the locking thereof vinextended position. All that the user need do is to depress the detent,rotate the sections relative to one another, and then push section 2axially into section I.

The'jointand the llocking means between sections 2 and 3 are identicalwith those just described 'and'were there additional sections they toowould be joined by identical means.v Similar parts in both joints havebeen given alike reference number for ease in identification andunderstanding. I

In constructingv and assembling the respective sections ofthetelescoping handle,'the sleeves 6 and 1, the pins I0, the detent II andthe recesses I 8 are first formed or mounted in or on the sections asdescribed. It Will be appreciated that-infplace -of sleevesthe sectionscould be turned to' the desired diameters. Section 3 is then insertedinto section 2 vfrom theleft as viewedin Fig. 1 or 3. These sections arethen inserted into section I also from the left. The remaining or freeend of section I is then closed by closure 4. This closure is hereinformed simply 4by splitting the end of section I into several parts andturning the parts radially inwardly. The sections are now permanentlysecuredl together.V

After assembly, the smallest section 3 is proascenso 3 bodiment shown, anuty is loosely V,fitted over" the section 3 and forced into `the end ofthe section is aso'cket"2i having `a "recesssquare in slargeddiameterfzon'.tiieflast?,insertedfendeon cross section. The socket has aflange '22'for retaining: the -nut 2U. The nut120'has arpartial flange.22 and is internally threaded forlgrasp iiigthethre'adedshank of agardening imple-r meiitovtherlike. As best seen-.in-Fig. 2, Igardi-in-`ing-'Eimplenrents such as afrake'fZfl and faihoe" are provided-.with ashank which has a squared stud endwhicnnts'into the socket 2|, and-"athreaded portion-221. The Ynut- '28 tlieadedly-V engages thisAthreat-:led fportio'n i521? 'to heldin@ implement ente theteieseopingrhaneie. It will be understood that a variety of differenttools or implements could be substituted for those shown.

The sections l 2 and 3 are preferably of about equal length so that allmay be telescoped within the section I. If the sections 2 or I arelonger than section 3 they will project when telescoped, and if shorterthe extended handle is not as long as possible and section 2 may getcaught behind sleeve 6.

Preferablyl section 2, when received fully in section I should be flushat the outer end and section 3 should be just a trifle longer toaccommodate nut 20.

We claim as our invention:

1. A telescoping handle or rod comprising a plurality of tubularsections of different cross sectional areas to be receivable endwise onewithin the other; jointing means between each two adjacent sectionscomprising an internal sleeve mounted in the end of the larger sectionand adapted slidingly to receive the smaller section, an external sleevemounted on the end of the smaller section and adapted to slide withinthe larger section, a pair of bayonet slots in said external sleeveopening through the inner edge thereof, a pair of pins projectingradially inwardly from the larger section spaced inwardly of the sleevetherein and adapted to be received in the bayonet slots of the externalsleeve when the sections are in extended position, a detent projectingradially outwardly of the smaller section spaced inwardly of saidexternal sleeve and a recess in the end of the larger section carryingthe internal sleeve adapted to be engaged by said detent when said pinsare in the limit positions in said bayonet slots.

2. A telescoping handle or rod comprising a pair of end sections and atleast one intermediate section, each of said sections having a main borewith the bores in successive sections progressively smaller to have thesections slidable one within the other, the larger end section having atone end thereof a portion of increased radial thickness with a bore justslightly larger than the external diameter of the intermediate sectionwhereby the intermediate section may be inserted into the larger endsection through the nonreduced end thereof, a portion of enlargeddiameter on the last inserted end of the intermediate section having adiameter just slightly smaller than the main bore in the larger endsection to provide a shoulder for abutment with the portion of reduceddiameter of the larger end section to prevent withdrawal of theintermediate section in one direction longitudinally of the larger endsection, a portion of increased radial thickness at the other end of theinteri oi'dthe-:intermediatesection,Lmeans closing the no reducedendiofthe larger.endifsectinltoiprevenni Vl aiprisingifa pairffof bayonetslots iformedrinfthe 'e mediateV sectionhavinga Areduce'dfbore efafdi'anreterijust-slightlyfllarger thanlthe externalidiameter-'ifoilftlie fsmaller en'dffsection slidinglyito`ceivefitlre-smailerfiend section, ai portion' :sasmallerrsectionfiformingSa Y'shoulder abuttingzwitlitheSportlehrer:ireduced@diameter--:nrgenannter@f mediate sect-.tmpreventlrxzomplete:withdmwalf oiitliefsmaHer. fend sectionliin: onedirectoniffr'omny withdrawaliioi i' eitheriVIVA thev intermediate@onf/there smaller: end "section ftherethroughlland ir1'eans..:fc"r1rlock-ingfsaidisec-tionsfinfextendedposition corri-.1

ternally enlargedflportion vof iea'chlzsection ope ingifinvvardlythrough the fendithereofg'al pairlictz pins projecting radiallyinwardly!'sfromleachisecfH' tion*ihavirglan-Linwardlyienlarged portionposithe sections are in extended position and with the enlarged portionsabutting, and cooperating means on adjacent sections operable to engageand hold adjacent sections only against relative rotation when said pinsare in the limit positions in the bayonet slots.

3. A telescoping rod comprising a plurality of tubular sections adaptedto telescope together concentrically, a cylindrical ring member mountedin one end of each larger section and having an inner diameter justslightly larger than the outer diameter of the next smaller section, asleeve concentrically mounted on each smaller section and adapted toabut against said ring member when adjacent sections are extendedwhereby movement of said adjacent sections apart is limited, a bayonetslot in said sleeve opening to the edge of the sleeve facing the ringmember, a radially projecting pin secured to the larger section forengagement in said bayonet slot, and means for locking said adjacentsections in extended position, said means comprising a spring presseddetent mounted radially in said smaller section, said detent having anintegral body portion and a narrow head of rectangular cross section,said head being adapted to engage a longitudinal slot in the end of theadjacent larger section and to extend beyond the end of said slot and astud near the base of said head adapted to engage the inner surface ofsaid larger section to limit the movement of said detent out of saidsmaller section, whereby longitudinal movement of the sections isresisted only by said pin in the bayonet slot and the abutting sleeveand ring and relative rotational movement is resisted by said detenthead engaging the longitudinal slot.

4. A telescoping handle comprising a plurality of tubular sections ofsuccessively decreasing diameter and length, a sleeve rigid with eachof'said smaller sections and having an outer diameter providing asliding t between the sleeve and the next larger tubular section, eachof said sleeves having a bayonet slot opening to the edge of the sleevefacing said smaller tubular section, a pin projecting inwardly from eachlarger section and adapted to be received in said slot to lock saidsections against relative longitudinal movement and a spring presseddetent mounted inV each smaller section and adapted to project into alongitudinal slot in the free end of each larger section when said pinis moved to the limit position of said bayonet slot whereby saidsections are locked against relative rotational movement.

7"" 5. .Alocking unit for locking telescopingrtubular members inextended position comprising asleevef rigid with the smaller of` saidmembers and vadapted to t snugly. Within the larger of said members tohold said members in axialv alignmenhsaid sleeve having, a bayonetslot'in the outer surface thereof opening to the marginal edge of saidsleeve facing the endvof the larger member through which said smallermember may be extended, a pin mounted'within said larger member andadapted to engage said bayonet slot, and a spring presseddetent mountedwithin said smaller member and adapted to engage a longitudinal slot insaid larger mem-ber whensaid pin isA moved to the closed end of said 1bayonet slot;whereby said membersare locked against .longitudinal orrotational lmovement- Number Name Date 918,579 Murch Apr'. 20,1909'993,121 Stone et al May 231911 1,007,512 VAardahl Oct. 31, 1911 101,112,732 Uhl Oct. 6. 1914 1,179,726 James Apr. 18, 1916. 2,291,593Hubbard July 28, 1942 FOREIGN PATENTS 5 Number Country Datel 36?;559France of 1906v 550,853 France o1' 1923 f 8, REFERENCES CITED UNITEDSTATES PATENTS.

